linux-kernel - [PATCH 3/3] hwmon: (max6639) Convert to use __pm instead of #ifdef CONFIG_PM

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Date:	Thu,  9 May 2013 10:09:51 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	linux-pm@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, lm-sensors@...sensors.org,
	Jean Delvare <khali@...ux-fr.org>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	Jingoo Han <jg1.han@...sung.com>,
	Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH 3/3] hwmon: (max6639) Convert to use __pm instead of #ifdef CONFIG_PM_SLEEP

Drops #ifdef from code, and ensures that conditional code still compiles
if power management is disabled. Resulting code is dropped from object file.

Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
 drivers/hwmon/max6639.c |   13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/hwmon/max6639.c b/drivers/hwmon/max6639.c
index 3e7b426..6080913 100644
--- a/drivers/hwmon/max6639.c
+++ b/drivers/hwmon/max6639.c
@@ -591,8 +591,7 @@ static int max6639_remove(struct i2c_client *client)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
-static int max6639_suspend(struct device *dev)
+static int __pm max6639_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	int data = i2c_smbus_read_byte_data(client, MAX6639_REG_GCONFIG);
@@ -603,7 +602,7 @@ static int max6639_suspend(struct device *dev)
 			MAX6639_REG_GCONFIG, data | MAX6639_GCONFIG_STANDBY);
 }
 
-static int max6639_resume(struct device *dev)
+static int __pm max6639_resume(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	int data = i2c_smbus_read_byte_data(client, MAX6639_REG_GCONFIG);
@@ -613,7 +612,6 @@ static int max6639_resume(struct device *dev)
 	return i2c_smbus_write_byte_data(client,
 			MAX6639_REG_GCONFIG, data & ~MAX6639_GCONFIG_STANDBY);
 }
-#endif /* CONFIG_PM_SLEEP */
 
 static const struct i2c_device_id max6639_id[] = {
 	{"max6639", 0},
@@ -622,15 +620,16 @@ static const struct i2c_device_id max6639_id[] = {
 
 MODULE_DEVICE_TABLE(i2c, max6639_id);
 
-static const struct dev_pm_ops max6639_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(max6639_suspend, max6639_resume)
+static const struct dev_pm_ops __pm max6639_pm_ops = {
+	.suspend = max6639_suspend,
+	.resume = max6639_resume,
 };
 
 static struct i2c_driver max6639_driver = {
 	.class = I2C_CLASS_HWMON,
 	.driver = {
 		   .name = "max6639",
-		   .pm = &max6639_pm_ops,
+		   .pm = pm_ops_ptr(&max6639_pm_ops),
 		   },
 	.probe = max6639_probe,
 	.remove = max6639_remove,
-- 
1.7.9.7

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